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Dell latitude 5480: Big Sur installing - EFI folder required


Alex Kranich

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Mount the EFI partition of the installed drive and place it there. When you format the drive to GUID, it automatically create this hidden partition.

Use ESP Mounter Pro.app, OC Configurator or Clover Configurator to mount it.

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Update:  Downloaded updates and OS changed to Big Sur 11.4 and I see now wifi icon on the top side, and I am able to connect to my router wifi. and I copied efi folder as you said , now works normal with no pendrive using OC Config, great

 

At least 2/4 problem are solved :=)

 

Please help me to let working mouse and keyboard

 

 

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Now keyboard is working, but touchpad mouse and wifi are not working,  i am keeping Catalina OS and updated all with opencore

i dont know why but if i install updates, and this mean install big sur latest version, i get error panic.

 

Instead of this, if i dont update kexts in opencore , updating only kext for keyboard . I install big sur as update and in this case boots and i have keyboard and wifi working. but still mouse and touchpad no. I seen that with big sur i have some lag and notebook is not reactive like with catalina.

 

 

 

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